US2794206A

US2794206A - Swivel mounting for windows

Info

Publication number: US2794206A
Application number: US516561A
Authority: US
Inventors: Christensen Frants Allan
Original assignee: Individual
Current assignee: Individual
Priority date: 1954-12-14
Filing date: 1955-06-20
Publication date: 1957-06-04
Anticipated expiration: 1974-06-04

Description

June 4,1957 F. A. CHRISTENSEN- 2,794,206

SWIVEL MOUNTING FOR WINDOWS I Filed June 20, 1955 INVENTOR.

FRANTS ALLAN CHRISTENSEN BY WM, v i-4+ WM fitt f United States Patent 2,794,206 SWIVEL MOUNTING FOR WINDOWS Frants Allan Christensen, Copenhagen, Denmark Application June 20, 1955, Serial No. 516,561 Claims priority, application Canada December 14, 1954 Claims. (Cl. 16-140) The invention relates to a swivel mounting for windows of the kind t-urnable on a horizontal axis and capable of being turned from closed position 180 into the room into position for polishing.

It is the object of the invention to provide a swivel mounting of this kind which even if made of relatively thin and light materials will be very robust and therefore capable of carrying even large windows, and which is of attractive appearance and so designed that all moving parts are encased in externally smooth, box-shaped casings which will not mar the appearance of the window.

It is a further object of the invention to provide a swivel mounting of this kind in which the window frame may easily be lifted from the casement if this should be necessary.

Further, it is an object of the invention to provide a swivel mounting of the kind mentioned which is so designed that the trunnion carrying the window frame will be unable to slip out of its bearing even if the frame should get out of the exact plane, for instance, by warping in the course of time.

Swivel mountings of \the kind herein dealt with possess the advantage that the axis on which the window frame is turning may be situated very close to the centre of gravity of the window, the construction being so designed that the trunnion will swing during the turning movement of the window so that the entire frame may be swung into the room when the window is to be placed in position for polishing without the frame impinging on the casement until it has been turned 180.

It will, however, generally be desirable to give one end of the frame a slight excess weight so that the window will tend to keep closed when left to itself. As in many cases such windows may be very large, it will be of importance not to impart an excessive turning moment to such windows due to the presence of this excess weight. For this reason it is a further object of the invention to provide a swivel mounting of the kind mentioned by means of which it will be possible to control the speed at which the frame may turn when left to itself.

The drawing shows an embodiment of a swivel mounting according to the invention.

Fig. 1 shows the swivel mounting with its parts in a position corresponding to that in which the window frame is swung somewhat out of closed position.

Fig. 2 shows the carrying'arm of the bearing in side elevation.

Fig. 3 the same seen from the lefthand side in Fig. 2, partly in cross-section.

Fig. 4 shows a cross-section through line IV-IV in Fig. 1 of the frame mounting, and

Fig. 5 .a cross-section through line V-V in Fig. l of the casement mounting.

The swivel mounting of the window consists of a casement mounting 2 fixed to the casement 1 having a flange countersunk into the easement and a grooved guide 3 "ice in the upper part of which is fastened a bearing 4 closed 'by a lid 5 held in place by a screw 6.

To the window frame 7 is fixed a box-shaped mounting 8 provided with a trunnion bearing 9 with a fixed guide tappet 10 fitting into the groove 3. The trunnion bearing 9 is provided with a notch 11 through which a turnable pawl 12 on the frame mounting 8 may enter. The pawl may be kept in engagement by a keep-screw 13.

The swivel mounting further comprises a carrying arm 14, provided with a trunnion 15 fitting into bearing 4 and a trunnion 16 fitting into bearing 9. Trunnion 16 has a conically machined cavity 17 in which an expander 18 is inserted capable of being adjusted in the trunnion by means of a set-screw 19. The expander 18 and set screw 19 have been omitted in Fig. 2 to make the showing of the construction more distinct. Trunnion 16 further has a groove 20 which may be engaged by pawl 12 when the trunnion is in place in bearing 9. When the parts are assembled as shown in Fig. l, the frame mounting 8 will rest on trunnion 16 on arm 14 which is suspended from the easement mounting 2, trunnion 15 being carried by bearing 4. Furthermore, tappet 10 on the frame mounting is in engagement with groove 3 and is thereby forced to move upwards and downwards when the frame mounting 8 is turned on trunnion 16. As a consequence, trunnion 16 on which the frame turns will during the swinging motion of the window be carried from a position at about the centre of the easement 1 to a position outside the easement, so that the frame which is forced to follow suit is carried into the room while it is being turned through so that in this mannet the window will be placed in a convenient position for cleaning.

If it is desired to remove the frame from the easement, it will only be necessary to remove lid 5 by unscrewing screw 6, and the frame with arms 14 may then be lifted clear of the bearing 4.

Through slit 11 pawl 12 engages groove 20 and thereby prevents trunnion 16 from slipping out of its bearing 9 even if in the course of time the window frame should become warped.

The ease of movement of the window may be adjusted by means of screw 19 which will be easily accessible when the window frame has been swung into position for cleaning. This applies also to screw 13.

The swivel mounting may be constructed in several ways other than that shown and may, more particularly be used in connection with coupled frames of the kind used in double windows in which each pane is fitted into its own frame, the two frames being normally coupled together and turned as one unit, but may be separated when the windows are to be cleaned.

I claim:

1. Swivel mounting for windows turnable on a horl zon-tal axis and capable of being turned 180 into the room into position for cleaning, and consisting of a casement mounting with a trunnion bearing and a vertical guide groove, a frame mounting with a trunnion bearing and a tappet spaced therefrom, said tappet being slidable in the groove of the easement mounting and, an arm with two trunnions carrying the Window frame and each fitting into a trunnion bearing, one in the easement mounting and one in the frame mounting.

2. Swivel mounting as claimed in claim 1, in which the;

trunnion bearing of the casement mounting is an open bearing covered with a removable lid.

3. Swivel mounting as claimed in claim 1, in which, the trunnion bearing of the frame mounting is provided. with a notch for a locking pawl turnably mounted on the frame mounting, one of said trunnions on said arm having a groove therein, said pawl through the said notch en 3 gaging in said groove in the trunnion of the arm resting in the trunnion bearing of the frame mounting.

4. Swivel mounting as claimed in clah'n 1, in which the trunnion .of the arm resting in the bearing of the frame mounting is provided with a brake means.

5. Swivel mounting as claimed in claim 4, in which the trunnion of the arm resting in the frame mounting is slitted and provided with an internal, conical cavity containing an expanding body that may be shifted axiailly by means of an adjusting device.

References Cited in the file of this patent UNITED STATES PATENTS